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Side-by-side financial comparison of ESCO TECHNOLOGIES INC (ESE) and Iridium Communications Inc. (IRDM). Click either name above to swap in a different company.

ESCO TECHNOLOGIES INC is the larger business by last-quarter revenue ($289.7M vs $219.1M, roughly 1.3× Iridium Communications Inc.). ESCO TECHNOLOGIES INC runs the higher net margin — 9.9% vs 9.9%, a 0.0% gap on every dollar of revenue. On growth, ESCO TECHNOLOGIES INC posted the faster year-over-year revenue change (17.3% vs 1.9%). Over the past eight quarters, ESCO TECHNOLOGIES INC's revenue compounded faster (7.8% CAGR vs 4.4%).

Esco is a Singaporean brand that develops, manufactures, and sells products and services for laboratories.

Iridium Communications Inc. is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium operates the Iridium satellite constellation, a system of 80 satellites: 66 are active satellites and the remaining fourteen function as in-orbit spares. Iridium Satellites are used for worldwide voice and data communication from handheld satellite phones, satellite messenger communication devices and integrated transceivers, as well as for two-way satellite messaging se...

ESE vs IRDM — Head-to-Head

Bigger by revenue
ESE
ESE
1.3× larger
ESE
$289.7M
$219.1M
IRDM
Growing faster (revenue YoY)
ESE
ESE
+15.3% gap
ESE
17.3%
1.9%
IRDM
Higher net margin
ESE
ESE
0.0% more per $
ESE
9.9%
9.9%
IRDM
Faster 2-yr revenue CAGR
ESE
ESE
Annualised
ESE
7.8%
4.4%
IRDM

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
ESE
ESE
IRDM
IRDM
Revenue
$289.7M
$219.1M
Net Profit
$28.7M
$21.6M
Gross Margin
41.4%
Operating Margin
13.2%
23.2%
Net Margin
9.9%
9.9%
Revenue YoY
17.3%
1.9%
Net Profit YoY
22.2%
EPS (diluted)
$1.11

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
ESE
ESE
IRDM
IRDM
Q1 26
$219.1M
Q4 25
$289.7M
$212.9M
Q3 25
$286.5M
$226.9M
Q2 25
$296.3M
$216.9M
Q1 25
$265.5M
$214.9M
Q4 24
$247.0M
$213.0M
Q3 24
$298.5M
$212.8M
Q2 24
$260.8M
$201.1M
Net Profit
ESE
ESE
IRDM
IRDM
Q1 26
$21.6M
Q4 25
$28.7M
$24.9M
Q3 25
$218.7M
$37.1M
Q2 25
$26.1M
$22.0M
Q1 25
$31.0M
$30.4M
Q4 24
$23.5M
$36.3M
Q3 24
$34.3M
$24.4M
Q2 24
$29.2M
$32.3M
Gross Margin
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
41.4%
Q3 25
45.9%
Q2 25
41.2%
Q1 25
41.1%
Q4 24
39.8%
Q3 24
40.1%
Q2 24
39.6%
Operating Margin
ESE
ESE
IRDM
IRDM
Q1 26
23.2%
Q4 25
13.2%
25.9%
Q3 25
17.2%
30.9%
Q2 25
11.2%
23.2%
Q1 25
15.3%
28.1%
Q4 24
11.4%
24.5%
Q3 24
14.8%
25.8%
Q2 24
14.3%
21.7%
Net Margin
ESE
ESE
IRDM
IRDM
Q1 26
9.9%
Q4 25
9.9%
11.7%
Q3 25
76.3%
16.4%
Q2 25
8.8%
10.1%
Q1 25
11.7%
14.2%
Q4 24
9.5%
17.1%
Q3 24
11.5%
11.5%
Q2 24
11.2%
16.1%
EPS (diluted)
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
$1.11
$0.24
Q3 25
$8.43
$0.35
Q2 25
$1.01
$0.20
Q1 25
$1.20
$0.27
Q4 24
$0.91
$0.30
Q3 24
$1.32
$0.21
Q2 24
$1.13
$0.27

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
ESE
ESE
IRDM
IRDM
Cash + ST InvestmentsLiquidity on hand
$103.8M
Total DebtLower is stronger
$145.5M
Stockholders' EquityBook value
$1.6B
Total Assets
$2.4B
Debt / EquityLower = less leverage
0.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
$103.8M
$96.5M
Q3 25
$101.3M
$88.5M
Q2 25
$78.7M
$79.3M
Q1 25
$57.4M
$50.9M
Q4 24
$71.3M
$93.5M
Q3 24
$66.0M
$159.6M
Q2 24
$63.0M
$63.5M
Total Debt
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
$145.5M
$1.8B
Q3 25
$186.0M
Q2 25
$525.0M
Q1 25
$88.0M
Q4 24
$112.0M
$1.8B
Q3 24
$122.0M
Q2 24
$173.0M
Stockholders' Equity
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
$1.6B
$462.6M
Q3 25
$1.5B
$450.5M
Q2 25
$1.3B
$473.6M
Q1 25
$1.3B
$518.4M
Q4 24
$1.2B
$576.6M
Q3 24
$1.2B
$663.8M
Q2 24
$1.2B
$786.7M
Total Assets
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
$2.4B
$2.5B
Q3 25
$2.4B
$2.6B
Q2 25
$2.5B
$2.6B
Q1 25
$1.8B
$2.6B
Q4 24
$1.8B
$2.7B
Q3 24
$1.8B
$2.8B
Q2 24
$1.8B
$2.7B
Debt / Equity
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
0.09×
3.80×
Q3 25
0.12×
Q2 25
0.40×
Q1 25
0.07×
Q4 24
0.09×
3.05×
Q3 24
0.10×
Q2 24
0.14×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
ESE
ESE
IRDM
IRDM
Operating Cash FlowLast quarter
$68.9M
Free Cash FlowOCF − Capex
$63.0M
FCF MarginFCF / Revenue
21.7%
Capex IntensityCapex / Revenue
2.0%
13.7%
Cash ConversionOCF / Net Profit
2.40×
TTM Free Cash FlowTrailing 4 quarters
$239.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
$68.9M
$108.6M
Q3 25
$109.9M
$100.8M
Q2 25
$73.7M
$129.6M
Q1 25
$24.1M
$61.1M
Q4 24
$34.2M
$104.8M
Q3 24
$72.1M
$118.6M
Q2 24
$36.2M
$81.1M
Free Cash Flow
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
$63.0M
$75.1M
Q3 25
$97.8M
$79.2M
Q2 25
$64.9M
$108.9M
Q1 25
$14.0M
$36.5M
Q4 24
$29.0M
$80.5M
Q3 24
$60.9M
$100.0M
Q2 24
$27.6M
$68.7M
FCF Margin
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
21.7%
35.3%
Q3 25
34.1%
34.9%
Q2 25
21.9%
50.2%
Q1 25
5.3%
17.0%
Q4 24
11.7%
37.8%
Q3 24
20.4%
47.0%
Q2 24
10.6%
34.2%
Capex Intensity
ESE
ESE
IRDM
IRDM
Q1 26
13.7%
Q4 25
2.0%
15.7%
Q3 25
4.2%
9.5%
Q2 25
3.0%
9.5%
Q1 25
3.8%
11.4%
Q4 24
2.1%
11.4%
Q3 24
3.8%
8.7%
Q2 24
3.3%
6.2%
Cash Conversion
ESE
ESE
IRDM
IRDM
Q1 26
Q4 25
2.40×
4.37×
Q3 25
0.50×
2.71×
Q2 25
2.83×
5.90×
Q1 25
0.78×
2.01×
Q4 24
1.46×
2.88×
Q3 24
2.10×
4.85×
Q2 24
1.24×
2.51×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

ESE
ESE

US Government$98.0M34%
Utility Solutions Group$87.5M30%
RF Shielding And Test$58.3M20%
Commercial$45.8M16%
Related Party$1.3M0%

IRDM
IRDM

Voice and data$57.4M26%
IoT data (2)$46.0M21%
Government$39.5M18%
Government service revenue (5)$27.6M13%
Subscriber equipment$20.2M9%
Hosted payload and other data service (4)$14.8M7%
Broadband (3)$12.2M6%
Commercial$1.3M1%

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